70513560 has 288 divisors, whose sum is σ = 265496400. Its totient is φ = 16174080.

The previous prime is 70513559. The next prime is 70513609. The reversal of 70513560 is 6531507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1155930 + ... + 1155990.

Almost surely, 2^70513560 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70513560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132748200).

70513560 is an abundant number, since it is smaller than the sum of its proper divisors (194982840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70513560 is a wasteful number, since it uses less digits than its factorization.

70513560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 103 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 70513560 is about 8397.2352592981. The cubic root of 70513560 is about 413.1339453403.

The spelling of 70513560 in words is "seventy million, five hundred thirteen thousand, five hundred sixty".